package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.annotation.AutoFill;
import com.sky.constant.MessageConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.entity.Employee;
import com.sky.enumeration.OperationType;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.service.EmployeeService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.time.LocalDateTime;
import java.util.List;

@Service
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;

    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();

        //1、根据用户名查询数据库中的数据
        Employee employee = employeeMapper.getByUsername(username);

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }

        //密码比对
        // TODO 后期需要进行md5加密，然后再进行比对
        //对前端传过来的明文密码进行md5进行加密处理
        password = DigestUtils.md5DigestAsHex(password.getBytes());
        if (!password.equals(employee.getPassword())) {
            //密码错误
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }

        if (employee.getStatus() == StatusConstant.DISABLE) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }

        //3、返回实体对象
        return employee;
    }


    @Override
    public void save(EmployeeDTO employeeDTO) {
        System.out.println("当前线程的id："+Thread.currentThread().getId());
        Employee employee = new Employee();
        //对象属性拷贝
        BeanUtils.copyProperties(employeeDTO,employee);

        //设置账号的状态，默认是正常状态，1：表示正常 0：表示异常
        employee.setStatus(StatusConstant.ENABLE);//这里是一个状态类，自己定义的，后面可以规范化使用

        //设置密码，默认密码123456  这里存的时候要先进行md5加密，然后再存进去  这里的默认密码也设置了一个常量类，直接引用就行
        employee.setPassword(DigestUtils.md5DigestAsHex("DEFAULT_PASSWORD".getBytes()));

        //当前记录的创建时间和修改时间
     //   employee.setCreateTime(LocalDateTime.now());
     //   employee.setUpdateTime(LocalDateTime.now());

        //设置当前记录创建人id和修改人id 这里目前是获取不到的  先写个固定值 后期完善

      //  employee.setCreateUser(BaseContext.getCurrentId());
      //  employee.setUpdateUser(BaseContext.getCurrentId());


        employeeMapper.insert(employee);
    }

    /*
    分页查询
     */


    @Override
    public PageResult pageQuery(EmployeePageQueryDTO employeePageQueryDTO) {
        //select * from employee limit 0,10
        //1.开始分页查询
        PageHelper.startPage(employeePageQueryDTO.getPage(),employeePageQueryDTO.getPageSize());
        Page<Employee> page = employeeMapper.pageQuery(employeePageQueryDTO);

        long total = page.getTotal();
        List<Employee> result = page.getResult();

        return new PageResult(total,result);//把Page类型转换成PageResult
    }

      /*
    启用禁用员工账号
     */

    @Override
    public void startOrStop(Integer status, long id) {
        Employee employee = new Employee();
        employee.setStatus(status);
        employee.setId(id);
        employeeMapper.update(employee);
    }

    /*
    根据id查询员工
     */
    @Override
    public Employee getById(long id) {
        Employee employee = employeeMapper.getById(id);
        employee.setPassword("****");
        return employee;
    }

    /*
    编辑员工
     */

    @Override
    public void update(EmployeeDTO employeeDTO) {
        Employee employee = new Employee();
        //对象属性拷贝
        BeanUtils.copyProperties(employeeDTO,employee);
     //   employee.setUpdateUser(BaseContext.getCurrentId());
     //   employee.setUpdateTime(LocalDateTime.now());

        employeeMapper.update(employee);
    }


}
